背单词v3

(1) Most galaxy associations are small and have a low density contrast.
(2) Flotation is a process for separating low density solids or liquid particles from a liquid phase.
(3) Since density increases with the concentration of red cells, an unusually low density may indicate anemia.

low-density
[ləu ˈdensiti]
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和…联系在一起；与…有关；

在另一方面；

[医]低密度（的）；

vt.容许；承认；忍受；容忍（不同意或不喜欢的事物）；

(1) Entertains the most high hope. for the greatest endeavor. makes the worst plan.
(2) But make no mistake: This cannot solely be America's endeavor.
(3) Please give me enough time make every effort and allow of my endeavor and its result.

endeavor
[enˈdevə]
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n.炮塔，转塔；塔楼，角楼；

vt.& vi.尝试，试图；尽力，竭力；
n.努力，尽力；

adj.非常宝贵的；无法估计的；无价的；金不换；

考虑到；体谅；允许有；留出；

(1) the sun's harmful ultra-violet rays
(2) Many household products are potentially harmful.
(3) Fruit juices can be harmful to children's teeth.

harmful
[ˈhɑ:mfəl]
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n.汹涌；大浪，波涛；
v.汹涌；起大浪，蜂拥而来；

n.本能，天性；冲动；天资，天才；
adj.深深地充满着；

adj.对…有害的；能造成损害的；不利；不良；

n.代表；继任者；议员；类似物；
adj.典型的；有代表性的；代议制的；相当[类似]（另一种属）的；

(1) peripheral information
(2) Fund-raising is peripheral to their main activities.
(3) the peripheral nervous system

peripheral
[pəˈrɪfərəl]
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n.（声音的）抑扬顿挫；节奏；韵律；调子；

adj.外围的；次要的；（神经）末梢区域的；
n.外部设备；

对…厌烦；

n.帮助；援助；机器助手；辅助装置；
vt.帮助；援助；帮助某人做某事；搀扶（某人）上下车；
vi.援助；出席；参加；

(1) We address and analyze issues such as the side effect and ambiguity in Han folding.
(2) If doesn't the leg get hurt what side effect does dozen of long canister gesso have?
(3) Honey and what take poisonous side effect together?

side effect
[said iˈfekt]
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涉及；指的是；适用于；参考；

n.（药物等起到的）副作用；

n.泰然自若；自信；体态；姿态；
vt.使平衡；保持（某种姿势）；抓紧；使稳定；

n.糖浆，糖汁；糖浆类药品；甜蜜的情感；果汁，甜汁；

(1) profound changes in the earth's climate
(2) My father's death had a profound effect on us all.
(3) profound insights

profound
[prəˈfaʊnd]
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adj.深厚的；意义深远的；严重的；知识渊博的；
n.〈诗〉深海，大洋；深渊；（灵魂）深处；

n.证明书；文凭，结业证书；
vt.发给证明书；用证书证明（或认可）；

vt.催促；推进，驱策；力劝，规劝；极力主张；
n.刺激，冲动；推动力；
vi.催促；强烈要求，竭力主张；

adj.批评的，爱挑剔的；危险的，危急的；决定性的；[物]临界的；

(1) population density
(2) low density forest
(3) the density of a gas

density
[ˈdensəti]
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vi.挥舞；茂盛，繁荣；活跃，蓬勃；
vt.挥动，挥舞；
n.挥舞，挥动；花样，华丽的辞藻；夸张的行为或手势；花式吹奏；

adv.本能地；

n.旅行者，观光客；〈美〉冬季到南部做工的流动工人；

n.密度；稠密，浓厚；[物]浓度，比重；愚钝；

(1) an accomplished artist/actor/chef
(2) She was an elegant and accomplished woman.
(3) She is an accomplished painter.

accomplished
[əˈkʌmplɪʃt]
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adj.想像中的，假想的，虚构的；[数]虚数的；幻；虚幻；

回转；回顾；向后伸展；背叛；

vt.& vi.尝试，试图；尽力，竭力；
n.努力，尽力；

adj.熟练的；完成的；学识渊博的；有修养的；
v.完成(accomplish的过去式和过去分词)；达到（目的）；实现（诺言、计划等）；

(1) Price changes must not adversely affect the living standards of the people.
(2) We commented adversely upon the imbecility of that message of telegraphic style.
(3) Widely fluctuating exchange rates may adversely affect international trade.

adversely
[əd'vɜ:slɪ]
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vt.围绕，包围；包含或包括某事物；完成；

vi.再发生；复发；重现；回想；

把…记下来；

adv.逆地，反对地；不利地；有害地；

(1) a seemingly stupid question
(2) a seemingly endless journey
(3) seemingly, he borrowed the money from the bank.

seemingly
[ˈsi:mɪŋli]
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轮流，交换；相间；

adv.长话短说；总而言之；

adv.看来似乎；表面上看来；貌似；

vt.& vi.贡献出；捐赠（款项）；投稿（给杂志等）；出力；vt.& vi.捐助；撰稿；投稿；
vt.增加，增进，添加（到某物）；

(1) Cotton clothing allows your skin to breathe.
(2) Her performance breathed wit and charm.
(3) His illness is a result of breathing in paint fumes over many years.

breathe
[bri:ð]
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n.杂种；杂交生成的生物体；混合物；混合词；
adj.混合的；杂种的；

把事情弄清楚，核实或查明某事物；设法确保出现某事物；务使；

vi.呼吸；活着，生存；小憩一会儿，歇歇气；散发香气；
vt.呼吸；吸进（如香气）；尤指平静地吐露，低语；使…明显的，暗示；

n.遗产；遗赠；

(1) political savvy
(2) savvy shoppers
(3) He is known for his political savvy and strong management skills.

savvy
[ˈsævi]
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vt.取得（权力）；承担，担任；假设，假定；呈现；

v.知道，了解；
n.机智；头脑；理解；悟性；
adj.有见识的，懂实际知识的，通情达理的；

n.添加剂；添加物；[数]加法；
adj.附加的；[化]加成的，加和的；[数]加法的；

<美，非正>兴风作浪，制造纠纷；

(1) technological developments in telecommunications
(2) the telecommunications industry
(3) [只用于名词前]a telecommunication company

telecommunications

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vi.垂直落下；骤然跌落；
n.铅锤；坠子；重压物；

n.[电]电通信；电信，通讯；电信学；电讯；

vt.禁止，下令禁止；剥夺权利；[古]诅咒；
n.禁止，禁令；谴责；诅咒，诅骂；革出教门；

vi.（意外地、突然地）出现；突然出现；发出爆裂声；（突然地）行动；
vt.（突然地）伸出；（突然地）提出问题；（把准备好的东西）突然拿出来；敲击；
n.流行音乐；汽水；（尤用作称呼）爸；（迅速打上的）记号；
adj.流行音乐的；通俗风格的；通俗的；现代的；
adv.爆炸；砰地；
abbr.邮局协议(post office protocol)；

(1) food additives
(2) additive-free orange juice
(3) chemical additives in petrol

additive
[ˈædətɪv]
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n.添加剂；添加物；[数]加法；
adj.附加的；[化]加成的，加和的；[数]加法的；

vt.释放；放开；发布；发行；
n.释放，排放，解除；释放令；公映的新影片，发布的新闻[消息]；

在…（如某行业）中获得成功；

vi.死亡，丧生；毁灭；腐烂，枯萎；老化；
vt.使麻木；使毁坏；

(1) a global perspective
(2) Try to see the issue from a different perspective .
(3) a report that looks at the education system from the perspective of deaf people

perspective
[pəˈspektɪv]
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n.推理，论证；运用思考、理解、推想等能力的做法或过程；论究，论断；
v.推理，思考；争辩；说服；
adj.推理的；有关推理的；

vt.散布，散置；点缀；

n.透镜，望远镜；观点，看法；远景，景色；洞察力；
adj.（按照）透视画法的；透视的；

n.窗玻璃；窗格；嵌板；方框；
vt.装窗玻璃于；镶嵌板于；用染色小布片拼做（衣服）；

(1) potential customers
(2) a potential source of conflict
(3) a potential prime minister

potential
[pəˈtenʃl]
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vt.& vi.（使）自动化；使自动操作；

adj.复杂的；精致的；富有经验的；深奥微妙的；
v.使变得世故；使迷惑；篡改(sophisticate的过去分词形式)；

vt.包含；使参与，牵涉；围绕，缠绕；使专心于；

adj.潜在的，有可能的；[语法学]可能语气的，表示可能性的；有能力的；
n.潜力，潜能；[物]电位，势能；潜能的事物；[语]可能语气；

(1) The missile fell harmlessly into the sea.
(2) It's just a bit of harmless fun.
(3) The bacteria are harmless to humans.

harmless
[ˈhɑ:mləs]
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adj.同时发生的，同时存在的；同时的；联立的；
n.同时译员；

adj.无害的，不致伤的；没有受到损失或免于法律责任的；

代表…，表现…，是…的典型；

n.命令，指挥；司令部，指挥部；[计算机]指令；控制力；
vt.指挥，控制，命令；命令；应得，值得；
vi.给出命令；命令，指令；
adj.指挥的，根据命令（或要求）而作的；

(1) High - density plywood was used for all formed surfaces.
(2) This high initial capitalization is rapidly amortized in the well managed high - density orchard.
(3) This region contains areas which are prinarily covered with either high density conifers or meadow hardwoods.

high-density
[hai ˈdensiti]
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adj.喜欢家庭生活的；（指动物）被驯养了的；
v.驯化( domesticate的过去式和过去分词 )；

[医]高密度；

adj.（衣服）紧身的，贴身的；

记住；怀；挂心；志；

(1) political groups agitating for social change
(2) Her family are agitating to have her transferred to a prison in the UK.
(3) The women who worked in these mills had begun to agitate for better conditions.

agitate
[ˈædʒɪteɪt]
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n.繁茂，丰富；充沛，充溢；

vt.搅动，摇动；使不安；激烈讨论；
vi.鼓动，煽动；

n.祖先，祖宗；

vt.（使）稳定，（使）稳固；使稳定平衡：通过平衡装置维持（如，飞机或船）的稳定；防止…的波动，平抑；平抑价格；
vi.变得稳定、稳固或固定；

(1) Nothing about this sum has come to light.
(2) It has come to light that he was lying.
(3) The conspiracy did not come to light until a newspaper reporter noticed.

come to light
[kʌm tu: lait]
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n.后代；后裔；（由过去类似物发展来的）派生物；弟子；
adj.下降的；祖传的；

显露，为大家所周知；东窗事发；

adj.场面富丽的，壮观的；引人注意的；惊动一时的；惊人的；
n.壮观的场面，精彩的表演；〈美〉一小时半以上的大场面电视节目；特大霓虹灯广告；

n.不利，劣势，短处；损失；

(1) Ventilate the room properly when paint stripping...
(2) The pit is ventilated by a steel fan.
(3) He did not think it the job of officials to ventilate their doubts or daydreams.

ventilation
[ˌventɪ'leɪʃn]
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vt.汇编；编辑；编制；编译；

v.反抗；叛；

v.喜爱，爱好；疼；待见；

n.空气流通；通风设备；通风方法；公开讨论；

(1) I'm a complete novice at skiing.
(2) computer software for novices/the novice user
(3) I'm a novice at these things, Lieutenant. You're the professional...

novice
[ˈnɒvɪs]
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vt.产生；造成；引起；
vi.形成；引起；

n.初学者，新手；新信徒；尚未赢过大赛的赛马；

n.犯罪地点，案发地点；会场；（尤指）体育比赛场所；审判地；

vt.使恼怒；使恶化；使加剧；

(1) Radon is known to be harmful to humans in large quantities.
(2) Such chemicals taken up by plants can be harmful to humans and animals.
(3) Generally speaking, natural obesity should not be harmful to human bodies.

be harmful to
[bi: ˈhɑ:mfəl tu:]
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n.梗概，大纲，提纲，草稿，要点，主要原则；外形，轮廓，轮廓线，轮廓画法，略图（画法）；
vt.概述；略述；画轮廓，打草图，描略图；

adj.微粒的，粒子的；
n.微粒，粒子；

vt.& vi.（使）窘迫，（使）局促不安；（使）困难；

妨害；

(1) spoken/written discourse
(2) discourse analysis
(3) He was hoping for some lively political discourse at the meeting.

discourse
[ˈdɪskɔ:s]
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n.（织机的）梭子；航天飞机；（缝纫机的）滑梭；短程穿梭运行的飞机（或火车，汽车）；
vt.& vi.穿梭般来回移动；
vt.以短程往复方式运送（货物等）；
vi.以短程往复式运行；

n.含义；含蓄，含意，言外之意；卷入，牵连，牵涉，纠缠；[逻辑学]蕴涵，蕴含；

vi.丰富，盛产；非常多，大量存在；充满；

n.论述，交谈；正式的讨论；
vi.演说；谈论；
vt.叙述；讨论；

(1) a well-ventilated room
(2) The bathroom is ventilated by means of an extractor fan.
(3) [不可数名词]a ventilation shaft

ventilate
[ˈventɪleɪt]
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adj.后来的；随后的；作为结果而发生的；附随的；

adj.属于偏执狂的；患妄想狂的；过分猜疑的；
n.偏执狂患者；妄想症患者；

vt.使通风；通风；公开；公开讨论；

在于；位于；躺在；分娩；

(1) The regime built up the largest army in Africa...
(2) The collection has been built up over the last seventeen years...
(3) Build her up with kindness and a sympathetic ear...

build up
[bild ʌp]
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逐步建立；增进；（在某个地方）盖满了建筑物；宣扬；

vt.使协调；<音>调音；

依靠…生活；

adj.方便的；手边的，附近的；便于使用的；手巧的；

(1) Water splashed onto the floor.
(2) Rain splashed against the windows.
(3) He splashed cold water on his face.

splash
[splæʃ]
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vt.使（液体）溅起；
vi.（指液体）溅落；
n.（光、色等的）斑点；溅泼声；溅上的斑点；溅泼的量；

adj.轮流的；交替的；间隔的；代替的；
vi.交替；轮流；
vt.使交替；使轮流；
n.〈美〉（委员）代理人；候补者；替换物；

阻止；制止；

n.凝胶，白明胶；

(1) The limit for carbon monoxide is 4.5 per cent of the exhaust gas.
(2) Objective To explore resistance to carbon monoxide poisonous hypoxia by Ligustrazin.
(3) Others monitor methane, carbon monoxide, ozone, lead, and all sorts of particles.

carbon monoxide
[ˈkɑ:bən məˈnɔkˌsaɪd]
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缺；缺少；缺乏；悭；

adj.值得表扬的，值得称赞的；很好的；可推荐的；

n.一氧化碳；

分成，分为；

(1) to release a prisoner/hostage
(2) Firefighters took two hours to release the driver from the wreckage.
(3) He refused to release her arm.

release
[rɪˈli:s]
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vt.释放；放开；发布；发行；
n.释放，排放，解除；释放令；公映的新影片，发布的新闻[消息]；

n.义务，责任；证券，契约；债务；恩惠；

n.遗产；继承物；传统；文化遗产；

vt.公开；揭露；使显露；使暴露；

(1) particulate pollution
(2) ...the particulate pollution in our atmosphere.
(3) The key technology of the diesel exhaust particulate filter is filter regeneration.

particulate
[pɑ:ˈtɪkjələt]
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n.参加，参与；分享；

adj.微粒的，粒子的；
n.微粒，粒子；

n.征服，击败；战利品；（尤指）爱情的俘虏；赢得（物）；

n.多样化，（人在种族、民族、宗教等方面的）多样性；差异；分歧；

(1) a propane gas cylinder
(2) ...a propane gas cylinder.
(3) Combustion systems can fire on natural gas or propane.

propane
[ˈprəʊpeɪn]
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vt.& vi.打断（别人的话等）；阻止；截断；
vt.暂停；中断；打扰；妨碍；
vi.打断；
n.中断；暂停；

adj.不幸的，倒霉的；不吉利的；不成功的；可惜的，可叹的；
n.不幸的人；

n.范围；射程；类别；（山脉，房屋等的）排列；
vi.搜索；变化；延伸；漫游；
vt.排列；（按一定位置或顺序）排序；把…分类；徘徊；
adj.牧场的，放牧区的；

n.丙烷；

(1) We'll get a breath of fresh air at lunchtime.
(2) Hold your breath and count to ten.
(3) His breath smelt of garlic.

breath
[breθ]
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n.呼吸；一口气；呼吸力；微量；

只要；

vt.举起；投掷；使起伏；呕吐；
vt.& vi.喘息；呕吐；
vi.起伏；（山丘等）隆起；拖；气喘；
n.举起；波动；隆起；呕吐；

adj.协调的；协定的；协商好的；[乐]合拍调的；

(1) ‘I'm feeling really depressed. ’ ‘The winter here has that effect sometimes. ’
(2) I tried to persuade him, but with little or no effect.
(3) I can certainly feel the effects of too many late nights.

effect
[ɪˈfekt]
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n.[电]电通信；电信，通讯；电信学；电讯；

n.影响；效果；印象；所有物；
vt.使发生；引起；产生（效果）；

n.调味品，佐料；

adj.当代的，现代的；同时代的，同属一个时期的；
n.同代人；同辈人；同龄人；当代人；

(1) I'd convinced myself (that) I was right.
(2) I've been trying to convince him to see a doctor.
(3) You'll need to convince them of your enthusiasm for the job.

convince
[kənˈvɪns]
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n.（在海岸上长的或冲到海岸上的）海草（用作肥料等）；墨角藻；残败；漂来物；

vt.排除，消除；淘汰；除掉；<口>干掉；

vt.使相信，说服，使承认；使明白；使确信；使悔悟，使认错[罪]；

任意，随意；信；

(1) He expected his daughters to be meek and submissive.
(2) She followed him like a submissive child.
(3) ‘You're right and I was wrong, ’ he said submissively.

submissive
[səbˈmɪsɪv]
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n.计算；账目；船只位置的推算；（尤指体育运动）属于可能胜出者行列之内；
v.<正>计算( reckon的现在分词)；猜想；考虑；<非正>思忖；

n.有，所有，拥有；领地；财产，所有权，占有物，所有物；持有违禁物；

adj.顺从的，唯命是从的；柔顺；帖；贴；

n.分类；分级；类别；（动植物等的）分类学；

(1) The flowers give off a heady scent at night.
(2) If plastic and rubber are burnt, they'll give off poisonous gases.
(3) Fireflies give off flashes of light when they fly at night.

give off
[ɡiv ɔf]
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发出；放出；散发出；放射出；

vi.附着于，紧贴；抓紧或抱住；坚持；沿（岸）前进，贴着（墙）走；
vt.依恋，依附于；

n.队列，阵列；数组；一大批；衣服；
vt.排列；部署兵力；打扮，装饰；

n.穿过；横贯，横切；横木；[建]横梁；
vt.横越，横贯；通过；[法]否认，反驳；[木工]横刨；
vi.来回移动；旋转；横越；
adj.横贯的；横切的；

(1) She has six previous convictions for theft.
(2) He plans to appeal against his conviction.
(3) an offence which carries, on conviction, a sentence of not more than five years' imprisonment

conviction
[kənˈvɪkʃn]
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n.定罪；说服；确信；信念；

n.事件，事变；小插曲；敌对行动；骚乱；
adj.[法]附带的；[光]入射的；易有的，附随的；

adj.受尊敬的，有声望的；<古>魔术的，欺骗的；

v.（使）穿得太讲究；
n.外衣；

(1) carbon dioxide emissions are the primary source of greenhouse gases.
(2) The Kyoto Protocol is a commitment to reduce the amounts of carbon dioxide output.
(3) It adopts carbon dioxide protection welding . Chassis is treated through shot blast. It has and firmness.

carbon dioxide
[ˈkɑ:bən daɪˈɔksaɪd]
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adj.沉思的；体贴的；缜密思考过的，深思熟虑的；

n.安慰；舒适；使人舒服的事物；给予援助或安慰的人或事；
vt.安慰，使舒适；使（痛苦等）缓和；

n.二氧化碳；

n.木材；隆隆声；废物；
vt.& vi.砍伐；笨重地行进；胡乱堆积；

(1) She continued her recitation of the week's events.
(2) The transmission began with a recitation from the Koran.
(3) The letter was short — a simple recitation of their problem.

recitation
[ˌresɪˈteɪʃn]
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[医]低密度（的）；

n.朗诵；背诵；习题课；

v.供应伙食，迎合；面向；

adj.不慎重的；轻率的；不明智的；不警觉的；

there is no place like home

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在家千日好；

n.控制，统治；

adj.无法计量的，无限的；无可估量；无量；不可估量；

n.土堆，土丘；堆；[考古学] 坟墩；[棒球] 投球区土墩；